Tool for scraping and finishing floors



No. 749,861. I PATENTED JAN. I9, 1904.

' J. S. HARTMAN.

TODL FOE SGRAPING AND FINISHING FLOORS.

APPLIUATION FILED SEPT. 19, 1903.

N0 MODEL.

no. *maser UNITED STATES fPatented January 19,-1904.

PATENT OFFICE.

JOHN S. HARTMAN, OF MANCHESTER, PENNSYLVANIA, ASSIGNOIt OF ONE- HALF TOWILLIAM S. 'SCHROLL, OF MANCHESTER, PENNSYLVANIA.

Tool. FOR SClRAPlNG AND FINISHING FLOORS.

SPECIFICATION forming part of Letters Patent l To. 749,861, datedJanuary 19, 1904. Application filed September 19,1903. Serial No.173,841. (NomodeL) i To aZZ whom it may concern:

Be it known that I, JOHN S. HARTMA'N, a citizen of the United States,residing at Manchester, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Tools forScraping and Finishing Floors; and I do declarethe following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecification. a

My invention relates to a tool for scraping and finishing hard-woodfloors; and it has for its object to provide such a tool which will besimple in construction, comparatively cheap to make, and eflici'ent inacti0n,and by which the floor can be scraped and at the same timesandpapered or finished, either simultaneously or at different times. 1

To the accomplishment of the foregoing and such other objects as mayhereinafter appear the invention consists in the construction and p inthe combination of parts hereinafter particularly described and thensought to be clearly defined by the claims, reference being had to theaccompanying drawings, forming a part hereof, and in which Figure 1 is aperspective view of the tool. Fig. 2 is a longitudinal section throughthe same with a portion of the handle broken away. Fig. 3 is a bottomplan view. Fig. 4: is a transverse section on the line 4 4 of Fig. 2,and Fig. 5 is a side view showing a form of handle which may be usedinstead of the form illustrated in Fig. 1.

In the drawings the numeral 1 designates a block or base whichpreferably is made of wood, but may be made of other material. This baseor block is formed in its under face with one or more inclined slots orrecesses 2, designed to receive a bit or scraper 3, which may beinserted in one or another of the inclined slots, as desired, and whichbit or scraper will be held in the slot by a lockingcam 4:, which ispivotally secured to the side of the block by a removable screw or bolt5,

so that said eccentric may be removed from near one slot and securednear the other slot when the scraper is shifted from one slot to theother, said screwor bolt entering a hole 6 made for it in the side ofthe block. For the purpose of weighting one end of the scrapercarryingblock, so as to prevent the same from lifting during the operation ofscraping, I provide a cast-metal block or counterbalancingweight 7,which is secured to the scraper-carrying block by means of screw-bolts8. For the purpose of-securing sandpaper to the block I provide meansfor detachably securing the strip of sandpaper 9, which is passedbeneath the block l'and up along opposite sides thereof to the rear ofthe bit or scraper 3, as illustrated in Figs. 1 and 5 of the drawings.The preferred means for this purpose consists of detachable strips 10,of wood or metal, one for each side of the block 1, which strips willbear against the sandpaper and press the same against the opposite sidesof the block. Said strips will be held to the sides of the block 1 bymeans of buttons 11, which will be pivoted to the sides of the block 1and which will press againstthe outside of the strips 10, so as to clampthe same to the sides of the block 1, and thus bind or securely hold thesandpaper 9 to the block. It will be observed that these strips 10 lieabove the bit or scraper-blade 3 and beneath the hubs of the buttons 11,and thus the strips 10 will be securely held in place. If desired, theinner faces of the buttons 11 may be cam-shaped, so as to more tightlyclamp and bind the strips to the sides of the block 1.

For the purpose of enabling the scraper 2 being manipulated by theoperator in a standing position I provide a handle consisting of theinclined bar 12 and the brace-rods 18, the latter being preferably madeof metal and secured to the bar 12 by a bolt 14 and at their lower endssecured to the end of the block 1 by screws 15, while the lower end ofthe bar 12 will be secured to the counterbalanoingweight 7 by a bolt 16and nut 17 the head of the bolt being set in a countersunk opening 18,formed in the counterbalancing-weight 7,

and the upper end of the bar 12 will be provided with a cross-bar 19 tobe grasped by the hands of the operator. For the purpose of bracing theconnection of the cross-bar 19 to the inclined bar 12 I may provide aclip 20, which will pass around the bar 19 and be bolted or otherwisesecured at its ends to' the bar 12. This manner of forming and applyingthe handle affords a very strong handle and enables the operator tostand while at work in scraping the floor. In some positions, however,it is desirable to have a handle so applied that the operator may be ina stooping position. When that is the case, the handle, composed of thebar 12 and brace 13, is detached, and a handle 21, such as illustratedin Fig. 5 of the drawings, is inserted in a slot 22, made for thepurpose in the top of the scraper-carrying block 1, said handle beingsecured by means of a screw-bolt 23.

Under the construction described if it be desired to merely scrape thefloor and not to sandpaper the same the sandpaper can be released byloosening the buttons 11, so as to unfasten the strips 10, and thus thescraper can be used without the sandpaper. If the work be such that thebit or scraper-blade should be near one end of the block, the bit orblade can be removed from one slot and placed in the slot nearest theend of the block and held therein by shifting the locking-cam 4, and ifit be desired to sandpaper the floor either without scraping the flooror subsequently to scraping the scraper bit or blade may be omitted andonly the sandpaper attached to the block 1.

As previously mentioned, it is preferred to make the block 1 of wood onaccount of the cost and of the lightness thus attained, and when so madethe counterbalancing metal weight 7 applied to the block 1, givessufiicient weight to prevent lifting or tilting of the block 1 at theend and renders the tool very efficient in operation.

While I have illustrated and described with particularity the preferreddetails of construction and arrangement of the several parts, yet it isobvious that changes can be made therein and the essential features ofmy invention be retained, and while I have also described the preferredmaterial of which the different parts may be made, yet it is obviousthat other materials may be employed.

Having described my invention and set forth its merits, what I claimis 1. A tool for finishing and scraping floors comprising the base-blockprovided with an inclined scraper-blade on its under face and acounterbalancingweight at one end of the block and back of the rearportion of the inclined scraper, substantially as described.

2. A tool for scraping and finishing floors comprising the base blockprovided with a scraper-blade on its under face, and means for securingsandpaper to the block to the rear of the scraper-blade, substantiallyas described.

3. A tool for scraping and finishing floors comprising a base blockprovided with a scraper blade on its under face, strips for bindingsandpaper to the block, and means for holding said strips in place, saidstrips lying above the top of the scraper-blade, substantially asdescribed.

1. The tool for scraping and finishing floors consisting of the woodenbase-block provided with a scraper-blade on its under face, acounterbalancing metal weight applied at one end of the base-block, thehandle formed of the inclined bar connected at one end to thecounterbalancing-weight and a rigid brace connecting said bar betweenits ends to one end of the base-block, and means for securing sandpaperto the base-block, substantially as described.

5. The combination with the base-block having a handle, and acounterbalancing-weight applied to the end of the block opposite to theend where the handle is grasped in operating the block, of means forsecuring sandpaper to the base-block, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN S. HARTMAN.

Witnesses:

CHARLES A. MAY, JAs. H. SoHALL.

